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Finding the Fourth Proportional to 4,985.64, 7,478.46 and 1,697.04

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Solution

The fourth proportional to 4,985.64, 7,478.46 and 1,697.04 is: 2,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.64 : 7,478.46 = 1,697.04 : x
  2. Step 2: Convert to fraction form
    4,985.64/7,478.46 = 1,697.04/x
  3. Step 3: Cross multiply
    4,985.64x = 7,478.46 × 1,697.04
  4. Step 4: Simplify right side
    4,985.64x = 12,691,245.76
  5. Step 5: Solve for x
    x = 12,691,245.76/4,985.64
  6. Step 6: Final answer
    x = 2,545.56

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.